am 8138cb49: Make Surface.toString() show more useful info to help debug bug 2594388.

Merge commit '8138cb49e47f9a9905a316a217757710185c66aa' into froyo-plus-aosp

* commit '8138cb49e47f9a9905a316a217757710185c66aa':
  Make Surface.toString() show more useful info to help debug bug 2594388.